The major bones of the lower limb

Question 1

Which hip bone bears the weight of the body when we sit down?

Answer 1

The Ischium

Question 2

What bone is formed by five fused vertebrae at the distal end of the vertebral column?

Answer 2

The sacrum

Question 3

A 74 year old lady with osteoporosis presents to the emergency department after a fall from standing height.

Which pelvic fracture would you suspect is most likely?

Answer 3

A pubic rami fracture

Question 4

What is the innominate bone more commonly referred to as?

Answer 4

The hip bone

Question 5

What is this bone called?

Answer 5

The ilium

Question 6

Which arrow points to the pubic rami?

Answer 6

Question 7

What are 3 functions of the pelvic girdle?

Answer 7

1. transfer the weight of the upper body from the axial skeleton to the lower skeleton for standing and walking
2. withstand compression from its support of body weight
3. protect the pelvic viscera

Question 8

What is the only weight bearing bone in the lower limb?

Answer 8

The tibia

Question 9

Which is the smallest and most anterior of the hip bones?

Answer 9

Pubis

Question 10

A 40 year old man is brought to A&E after a high speed road collision.

What pelvic fracture would you suspect is most likely?

Answer 10

An acetabular fracture

Question 11

What is the sacrum formed by?

Answer 11

5 fused vertebrae at the distal end of the vertebral column

Question 12

What is the innominate bone formed by?

Answer 12

the fusion of three smaller bones

Question 13

What abnormalities can you spot in this X-Ray?

Answer 13

1. Total left hip replacement
2. Mildly displaced fractures of the right superior and inferior pubic rami.

Question 14

Which structure passes through the foramen labelled A?

Answer 14

Obturator vein

Question 15

Which part of the hip bone has been highlighted green?

Answer 15

The ischium

Question 16

What is this bone called?

Answer 16

The Sacrum

Question 17

What joint is this?

What type of joint is it?

Answer 17

Pubic symphysis

Cartilaginous joint

Question 18

What is this bone called?

Answer 18

The tibia

Question 19

Which is the largest and most prominent of the three hip bones?

Answer 19

The ilium

Question 20

Where does the distal portion of the tibia articulate?

Answer 20

with the talus

Question 21

Where does the patella attach?

Answer 21

Proximally to the tibial tuberosity

Question 22

What is the longest bone in the body?

Answer 22

Femur

Question 23

What joints are these?

What type of joint are they?

Answer 23

Sacro-iliac joints

synovial joints

Question 24

What is this bone called?

Answer 24

The femur

Question 25

What is this bone called?

Answer 25

The ischium

Question 26

Where does the fibula articulate with the tibia?

Answer 26

at the proximal and distal end

Question 27

Which is the most inferior of the hip bones?

Answer 27

Ischium

Question 28

What is the only purpose of the fibula?

Answer 28

To provide attatchments for muscles and ligaments

Question 29

What is this bone called?

Answer 29

The innominate bone

Question 30

What is this bone called?

Answer 30

The innominate bone

Question 31

What is the pelvis?

Answer 31

A bowl shaped group of bones that provide the bony attachment of the lower limb to the body